77 строки
2.3 KiB
C
77 строки
2.3 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2005 The University of Tennessee and The University
|
|
* of Tennessee Research Foundation. All rights
|
|
* reserved.
|
|
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
|
|
* University of Stuttgart. All rights reserved.
|
|
* Copyright (c) 2004-2005 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
#include "ompi_config.h"
|
|
#include <stdio.h>
|
|
|
|
#include "mpi/c/bindings.h"
|
|
#include "ompi/mca/topo/topo.h"
|
|
|
|
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
|
|
#pragma weak MPI_Cart_map = PMPI_Cart_map
|
|
#endif
|
|
|
|
#if OMPI_PROFILING_DEFINES
|
|
#include "mpi/c/profile/defines.h"
|
|
#endif
|
|
|
|
static const char FUNC_NAME[] = "MPI_Cart_map";
|
|
|
|
|
|
int MPI_Cart_map(MPI_Comm comm, int ndims, int *dims,
|
|
int *periods, int *newrank)
|
|
{
|
|
int err;
|
|
mca_topo_base_module_cart_map_fn_t func;
|
|
|
|
/* check the arguments */
|
|
if (MPI_PARAM_CHECK) {
|
|
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
|
|
if (MPI_COMM_NULL == comm) {
|
|
return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_COMM,
|
|
FUNC_NAME);
|
|
}
|
|
if (OMPI_COMM_IS_INTER(comm)) {
|
|
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_COMM,
|
|
FUNC_NAME);
|
|
}
|
|
if ((NULL == dims) || (NULL == periods) || (NULL == newrank)) {
|
|
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_ARG,
|
|
FUNC_NAME);
|
|
}
|
|
}
|
|
|
|
if(!OMPI_COMM_IS_CART(comm)) {
|
|
/* In case the communicator has no topo-module attached to
|
|
it, we just return the "default" value suggested by MPI:
|
|
newrank = rank */
|
|
*newrank = ompi_comm_rank(comm);
|
|
}
|
|
else {
|
|
/* get the function pointer on this communicator */
|
|
func = comm->c_topo->topo_cart_map;
|
|
|
|
/* call the function */
|
|
if ( MPI_SUCCESS !=
|
|
(err = func(comm, ndims, dims, periods, newrank))) {
|
|
return OMPI_ERRHANDLER_INVOKE(comm, err, FUNC_NAME);
|
|
}
|
|
}
|
|
|
|
return MPI_SUCCESS;
|
|
}
|